Research Papers in Physics and Astronomy

 

Date of this Version

June 1988

Comments

Published by American Physical Society. Physics Rev. B37, 9834 (1988). http://prb.aps.org. Copyright © 1988 American Physical Society. Permission to use.

Abstract

We have observed an incommensurate superlattice structure in the Bi-Sr-Ca-Cu-O system using electron diffraction. The wave vector of the superlattice, q=(0,1/4.7,1), has an incommensurate component along the b axis and a commensurate component along the c axis. Twist boundaries perpendicular to the c axis, across which the crystallographic a and b axes are rotated 90°, are commonly observed in this system.

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